Magnetic MCM-41 silica particles grafted with poly(glycidylmethacrylate) brush: Modification and application for removal of direct dyes

Arıca, Tuğçe A.; Ayas, Erhan; Arıca, M. Yakup

doi:10.1016/j.micromeso.2017.02.011

Cited by 162 publications

(61 citation statements)

References 29 publications

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“…This was found to be very efficient in the removal of U(VI) ions from solutions as shown by the high adsorption capacity of 760.3 mg U(VI) g −1 . A new generation adsorbent was developed by Arica et al who prepared magnetic MCM‐41 (Mobil Composition of Matter No. 1—a novel mesoporous zeolite) composite particles via conventional sol–gel method.…”

Section: Introductionmentioning

confidence: 99%

Studies on the Complexation of 3d Transition Metal Ions with NR/PEO Block Copolymer in Aqueous Medium

Mrudula

Nair

2020

Polymer Engineering & Sci

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Polyethylene oxide (PEO) was chemically linked to natural rubber (NR) segments to form a block copolymer (BC), which proved to be a suitable material for complexing with selected first row transition metal ions in aqueous solution through batch adsorption method under noncompetitive mode. Optimum conditions for sorption were found to be 20 mmol/L initial concentration, pH at 6, ambient temperature, and 24 h. The order of decreasing adsorption capacity obtained is Mn(II) > Co(II) > Zn(II) > Ni(II) > Cu(II) > Fe(III). Freundlich isotherm shows the best fit indicating that the adsorption is of heterogeneous in nature. The complexation follows pseudo second‐order kinetics. Exothermic character of the complexation was confirmed by thermodynamic study. For all metal ions, the standard free energy change values are negative for the different temperatures studied, which confirms the spontaneous character of the process. At ambient temperature, the free energy change lies between −2.35 and − 7.83 kJ/mol for all complexes. Values of activation energy for all the metal ion complexation is within the range 11–25 kJ/mol, which indicates chemical interaction via activated physico–chemical adsorption. Variation in stability constant of the complexes also follows the same order as given above. POLYM. ENG. SCI., 60:661–672, 2020. © 2020 Society of Plastics Engineers

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Section: Introductionmentioning

confidence: 99%

Studies on the Complexation of 3d Transition Metal Ions with NR/PEO Block Copolymer in Aqueous Medium

Mrudula

Nair

2020

Polymer Engineering & Sci

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“…In the recent years, extensive research has been undertaken to develop alternative and cost‐effective adsorbents . Recently, Tugce A. Arica et al successfully utilized magnetic MCM‐41 particles prepared by sol gel method, grafted with poly (glycidyl methacrylate) via the ATRP method and modified with tris (2‐aminoethyl) amine (TAEA) for the adsorptive removal of Direct Blue 6 and Direct Black‐38 from an aqueous medium. Gulay Bayramoglu and Mehmet Yakup Arica modified fungal biomasses of Funalia trogii for the removal of Congo red dye (CRD) from aqueous medium.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of semi interpenetrating network hydrogel [(GrA‐Psy)‐cl‐Poly (AA)] and its application for efficient removal of malachite green from aqueous solution

Wadhera

Jindal

Dogra³

2019

Polymer Engineering & Sci

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In the present study, the synthesis of novel semi‐interpenetrating network (Semi‐IPN) hydrogel based on gum rosin alcohol‐psyllium (GrA‐Psy) has been reported. (Gum rosin alcohol‐psyllium)‐crosslinked‐poly(acrylic acid) [termed as (GrA‐Psy)‐cl‐poly (AA)] was synthesized using potassium persulphate (KPS) as an initiator and N, N′−methylene‐bis‐acrylamide (MBA) as crosslinker by free radical graft co‐polymerization technique. The prepared semi‐IPN was characterized using FTIR, XRD, and FE‐SEM. Further, the synthesized hydrogel was evaluated for the removal of malachite green (MG) dye from aqueous solution. Dye adsorption data was analyzed through various isotherm and kinetic models. Thermodynamic parameters and reusability of the synthesized adsorbent were also assessed. POLYM. ENG. SCI., 59:1416–1427 2019. © 2019 Society of Plastics Engineers

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“…Unfortunately, the natural MMT has poor adsorption of anionic dyes due to the negative charge and hydrophilic characteristic of its surface [11]. us, many techniques have been used to modify MMT for improving its dye adsorption capacity [1,12,13], and organic modification of introducing active ligands to create hybrid composites has been proved to be an important and successful strategy to increase the dye adsorption capacity of many materials [14,15]. For instance, the adsorption capacity of direct blue 74 on poly(dopamine) grafted biosilica composite was 67.8 mg/g, and the capacity increased to 386.4 mg/g after tetraethylenepentamine ligands were loaded on the surface of the composite [16].…”

Section: Introductionmentioning

confidence: 99%

Adsorption of an Anionic Azo Dye Using Moringa oleifera Seed Protein-Montmorillonite Composite

Xiao

Shang

et al. 2019

Journal of Chemistry

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In this study, Moringa oleifera seed protein-montmorillonite (MOSP-MMT) composite was synthetized using the impregnation method. The MOSP-MMT adsorbent was characterized using scanning electron microscope, X-ray diffraction, infrared spectroscopy, surface area analysis, and thermogravimetric analysis. The removal of water-soluble reactive red 2 (RR-2) from artificial wastewater by the MOSP-MMT composite was carried out in a batch system. The results indicated that RR-2 adsorption increased with contact time, and the pseudo-second-order equation was best to describe the adoption process among the three models. The RR-2 adsorption decreased from 7.60 to 5.92 mg/g as pH increased from 3.2 to 9.1 and increased from 15.2 to 17.1 mg/g as NaCl concentration increased from 0 to 30 g/L. The Freundlich isotherm model provided the better fit of the experimental data than the Langmuir model. The result showed that the MOSP-MMT composite could be a potential adsorbent for the treatment of wastewater containing RR-2.

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Magnetic MCM-41 silica particles grafted with poly(glycidylmethacrylate) brush: Modification and application for removal of direct dyes

Cited by 162 publications

References 29 publications

Studies on the Complexation of 3d Transition Metal Ions with NR/PEO Block Copolymer in Aqueous Medium

Studies on the Complexation of 3d Transition Metal Ions with NR/PEO Block Copolymer in Aqueous Medium

Synthesis of semi interpenetrating network hydrogel [(GrA‐Psy)‐cl‐Poly (AA)] and its application for efficient removal of malachite green from aqueous solution

Adsorption of an Anionic Azo Dye Using Moringa oleifera Seed Protein-Montmorillonite Composite

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